Structure

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Colonists can build structures of various materials, each with different beauty, flammability, and hit-points. Enclosed areas will automatically prompt colonists to build a roof unless you apply a no roof region, or if the structure is too large (over 300 cells). Structures leave ash on the ground when burnt.

Walls

Main article: Wall

Walls are impassable structures capable of supporting a roof. Walls obstruct a pawn's line of sight, though pawns can lean into a free space next to a wall to fire at enemies from behind cover. Walls obstruct the spread of light, enclose rooms for temperature, cleanliness, beauty and other mechanics. They can be made out of any non-textile building material. Power conduits may be constructed inside walls to remove their beauty penalty. Smoothing natural stone walls allows conduits to be placed beneath them. Walls require 5 materials to construct.

Constructed walls

Wall	Beauty	Work to Build	HP	Flamma­bility	Market Value
Material
Gold	20	000,122 ticks (2.03 secs)	180	40%	500
Granite blocks	0	000,950 ticks (15.83 secs)	510	0%	7.9
Jade	10	000,675 ticks (11.25 secs)	150	0%	27
Limestone blocks	0	000,950 ticks (15.83 secs)	465	0%	7.9
Marble blocks	1	000,883 ticks (14.72 secs)	360	0%	7.7
Plasteel	0	000,297 ticks (4.95 secs)	840	0%	46
Sandstone blocks	0	000,815 ticks (13.58 secs)	420	0%	7.4
Silver	6	000,135 ticks (2.25 secs)	210	40%	51
Slate blocks	0	000,950 ticks (15.83 secs)	390	0%	7.9
Steel	0	000,135 ticks (2.25 secs)	300	40%	10
Uranium	0	000,257 ticks (4.28 secs)	750	0%	31
Wood	0	000,095 ticks (1.58 secs)	195	100%	6.3
Bioferrite	0	000,338 ticks (5.63 secs)	600	75%	5
Obsidian	8	000,743 ticks (12.38 secs)	150	0%	28
Vacstone blocks	0	000,950 ticks (15.83 secs)	540	0%	13

Natural walls

These cannot be constructed, only mined, but act largely like walls and are provided for comparisons sake. All natural walls have negative beauty.

Material		HP	Flammability	Beauty	Value
	Compacted plasteel	8,000	0	0	0
	Silver ore	1,500	0	0	0
	Compacted steel	1,500	0	0	0
	Uranium ore	4,000	0	0	0
	Jade	1,500	0	0	0
	Gold ore	1,500	0	0	0
	Compacted machinery	2,000	0	0	0
	Granite	900	0	-2	0
	Limestone	700	0	-2	0
	Marble	450	0	-1	0
	Slate	500	0	-2	0
	Sandstone	400	0	-2	0

Smoothed walls

Smoothed walls are created from natural stone walls. Pawns assigned to the Construct work-type will smooth natural stone walls and rough stone floors designated for smoothing via the Smooth Surface order (Architect tab>Floors.) The pawn stat Smoothing Speed governs this task and is dependent on a pawn's Global Work Speed, Construction skill, Manipulation and Sight. Natural stone walls have a beauty penalty, while smoothed walls increase beauty and wealth. Smoothed walls despite having the same HP as natural walls, can be fully repaired by pawns assigned to Construct. As such they are superior to natural walls as support structures for your colony.

Material	HP	Work Required	Flammability	Beauty	Value	Cover Effectiveness
Smoothed Granite Wall	900	6,500 ticks (1.81 mins)	0%	1	7	75%
Smoothed Limestone Wall	700	6,500 ticks (1.81 mins)	0%	1	7	75%
Smoothed Marble Wall	450	6,500 ticks (1.81 mins)	0%	2	7	75%
Smoothed Sandstone Wall	400	6,500 ticks (1.81 mins)	0%	1	7	75%
Smoothed Slate Wall	500	6,500 ticks (1.81 mins)	0%	1	7	75%
Smoothed Vacstone Wall	600	6,500 ticks (1.81 mins)	0%	1	7	75%

Gravship hull

Main article: Gravship hull

Gravship hulls can be constructed once the Basic gravtech research project has been completed. They are airtight, non flammable, and must be built on Gravship substructure. Gravship hulls require 7 materials to construct. Compared to walls, Gravship hulls: have 40% more hit points, cost 40% more Stuff to make, and take 222.22% more work to make.

Gravship hull	Beauty	Work to Build	HP	Flamma­bility	Market Value
Material
Gold	20	000,270 ticks (4.5 secs)	252	0%	700
Plasteel	0	000,660 ticks (11 secs)	1176	0%	65
Silver	6	000,300 ticks (5 secs)	294	0%	71
Steel	0	000,300 ticks (5 secs)	420	0%	14
Uranium	0	000,570 ticks (9.5 secs)	1050	0%	44
Bioferrite	0	000,750 ticks (12.5 secs)	840	0%	8
Obsidian	8	001,650 ticks (27.5 secs)	210	0%	41

Fortified wall

Main article: Fortified wall

Fortified walls cannot be constructed or deconstructed, and are found in maps from the Odyssey DLC. Fortified walls have 7,500 hit points, second only to compacted plasteel.

Doors

Door

Main article: Door

Doors provide entry points through walls for colonists while still keeping out enemies and wild animals. Pawns manually open doors which causes a delay as they try to pass through, as opposed to autodoors which open on demand and allow faster passage. All doors are generally locked to hostile entities, including prisoners, raiders and mad animals. A door can be marked to "Hold open," which means the next time it is opened, it will stay open, and then all pawns can pass through. A door can also be marked "Forbid". Colonists and tamed animals don't use forbidden doors, even if they're held open. However visitors, traders, and colonists on mental breakdowns ignore the forbidden status.

Door	Beauty	Work to Build	HP	Flamma­bility	Door Speed	Market Value
Material
Gold	20	000,765 ticks (12.75 secs)	96	40%	100%	2,505
Granite blocks	0	005,240 ticks (1.46 mins)	272	0%	45%	41
Jade	10	004,250 ticks (1.18 mins)	80	0%	100%	140
Limestone blocks	0	005,240 ticks (1.46 mins)	248	0%	45%	41
Marble blocks	1	004,815 ticks (1.34 mins)	192	0%	45%	40
Plasteel	0	001,870 ticks (31.17 secs)	448	0%	100%	230
Sandstone blocks	0	004,390 ticks (1.22 mins)	224	0%	45%	38
Silver	6	000,850 ticks (14.17 secs)	112	40%	100%	255
Slate blocks	0	005,240 ticks (1.46 mins)	208	0%	45%	41
Steel	0	000,850 ticks (14.17 secs)	160	40%	100%	51
Uranium	0	001,615 ticks (26.92 secs)	400	0%	75%	156
Wood	0	000,595 ticks (9.92 secs)	104	100%	120%	32
Bioferrite	0	002,125 ticks (35.42 secs)	320	75%	100%	26
Obsidian	8	004,675 ticks (1.3 mins)	80	0%	100%	142
Vacstone blocks	0	005,240 ticks (1.46 mins)	288	0%	45%	69

Autodoor

Main article: Autodoor

Autodoors are regular doors that open and close 4x as fast, but need to constantly draw 50 W of power. Lacking sufficient power, they lose the speed bonus and act like regular doors, until power is returned. Powered autodoors made of stone open slightly faster than regular wooden doors. Powered autodoors made of any material other than stone open fast enough that pawns are not slowed down when passing through. In all other aspects, an autodoor is identical to a regular door made of the same material. Construction requires 30% additional work, 40 steel and 2 components on top of the 25 base material for the regular door.

Autodoor	Beauty	Work to Build	HP	Flamma­bility	Door Speed	Market Value
Material
Gold	20	000,990 ticks (16.5 secs)	96	40%	400%	2,645
Granite blocks	0	006,740 ticks (1.87 mins)	272	0%	180%	187
Jade	10	005,500 ticks (1.53 mins)	80	0%	400%	285
Limestone blocks	0	006,740 ticks (1.87 mins)	248	0%	180%	187
Marble blocks	1	006,190 ticks (1.72 mins)	192	0%	180%	185
Plasteel	0	002,420 ticks (40.33 secs)	448	0%	400%	375
Sandstone blocks	0	005,640 ticks (1.57 mins)	224	0%	180%	183
Silver	6	001,100 ticks (18.33 secs)	112	40%	400%	395
Slate blocks	0	006,740 ticks (1.87 mins)	208	0%	180%	187
Steel	0	001,100 ticks (18.33 secs)	160	40%	400%	192
Uranium	0	002,090 ticks (34.83 secs)	400	0%	300%	295
Wood	0	000,770 ticks (12.83 secs)	104	100%	480%	173
Bioferrite	0	002,750 ticks (45.83 secs)	320	75%	400%	169
Obsidian	8	006,050 ticks (1.68 mins)	80	0%	400%	285
Vacstone blocks	0	006,740 ticks (1.87 mins)	288	0%	180%	215

Vac barrier

Main article: Vac barrier

Bridge

Bridge

Main article: Bridge

Bridges are structures that can be built on water. Bridges allow more rapid movement across water. Once built, they can support many structures, including wooden walls, but not particularly heavy structures including any other type of wall. Bridges allow for easier building in swampy biomes. Floors may not be built atop bridges. Bridges cost 12 wood each. They can be damaged or destroyed by fire or explosions, including whatever was built on top.

Heavy bridge

Main article: Heavy bridge

Column

Main article: Column

Columns are passable structures which are capable of holding a roof which do not block sight, or movement and look quite nice. They have x/1.875 (.533x) of a wall's normal health, 4x the beauty, and 4x the value. They also have 25% cover effectiveness and do not slow down pawns. These were introduced in 1.1.

Column	Beauty	Work to Build	HP	Flamma­bility	Market Value
Material
Gold	40	000,675 ticks (11.25 secs)	96	40%	2,000
Granite blocks	5	004,640 ticks (1.29 mins)	272	0%	35
Jade	22	003,750 ticks (1.04 mins)	80	0%	114
Limestone blocks	5	004,640 ticks (1.29 mins)	248	0%	35
Marble blocks	8	004,265 ticks (1.18 mins)	192	0%	33
Plasteel	5	001,650 ticks (27.5 secs)	448	0%	186
Sandstone blocks	5	003,890 ticks (1.08 mins)	224	0%	32
Silver	16	000,750 ticks (12.5 secs)	112	40%	205
Slate blocks	5	004,640 ticks (1.29 mins)	208	0%	35
Steel	5	000,750 ticks (12.5 secs)	160	40%	41
Uranium	2	001,425 ticks (23.75 secs)	400	0%	125
Wood	5	000,525 ticks (8.75 secs)	104	100%	26
Bioferrite	1	001,875 ticks (31.25 secs)	320	75%	22
Obsidian	18	004,125 ticks (1.15 mins)	80	0%	115
Vacstone blocks	6	004,640 ticks (1.29 mins)	288	0%	57

Version history

• 0.3.410 - The unpowered "Simple Door" added.
• 0.4.460 - Stone wall health raised from 400 to 650.
• Beta 19/1.0 Update - You can now smooth natural rough rock walls into high-quality walls
• 1.5.4062 - Market value of smoothed walls was unified to 7 (previously: sandstone 18, granite, limestone and slate 20, marble 25).

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Architect

Structure

Animal flap • Autodoor • Bridge • Column • Door • Fence • Fence gate • Ornate door • Wall • Security door • Heavy bridge

Related

Roof • Gravship hull • Vac barrier